posix threads and performance with posix libraries

Hi I'd like to know if you'd recommend the POSIX libraries for threads/concurrency..etc. and is it detailed in your book on how to use them?
I heard there are performance issues on WINDOWS. Can you comment on that from your own experience?
Any good posix impl's to avoid performance/concurrency issues?
Thanks!
Joel

Joel Thompson wrote:Hi I'd like to know if you'd recommend the POSIX libraries for threads/concurrency..etc. and is it detailed in your book on how to use them?
I heard there are performance issues on WINDOWS. Can you comment on that from your own experience?
Any good posix impl's to avoid performance/concurrency issues?

The POSIX thread libraries are only covered in my book in the appendix comparing various threading libraries; my book is about the C++0x threading facilities.

I would recommend that in new C++ code you use the C++0x thread facilities wherever possible. The only implementation I am aware of for Windows is my just::thread implementation, and this has very low overhead compare to raw OS threads on both Linux and Windows, with comparable performance on both platforms.